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Post by papaof2 on Apr 13, 2024 4:52:10 GMT -6
I've mentioned the poor math on our power co-op's web outage page. It seems they're not the only power company who uses that math-limited programmer. Feorgia Power has "Total Customers Affected" of 289 and a group of 4 outages near Athens wth the following ERT: Estimated Restoration Time (ERT): Assessing Condition Customers Affected 329 Number Of Outages 4 Seems that people who can't do third grade math are in abundance :-( Here's the screenshot of that page: www.jecarter.us/files/georgia-power-error-13Apr2024.jpg
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Post by papaof2 on May 1, 2024 15:56:44 GMT -6
Georgia Power has a large outage: 3632 meters out centered on Flemington, GA which is East of Gumbranch (It's along a branch of Gum Creek/River?) and West of Fleming. It also affects Cinder Hill (sounds like a former factory location), Thornbriar (that sounds redundant ;-), Bowen and Olmstead Estates. Probably more useful, it's Southeast of Fort Stewart.
Details: "An outage has been reported". ERT: 7:30PM
I thought the names were more interesting than the size of the outage, although I wonder how much damage it takes to knock out that many meters...
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Post by gipsy on May 1, 2024 16:26:21 GMT -6
One big tree on a substation perhaps?
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Post by papaof2 on May 1, 2024 23:17:13 GMT -6
If there is damage to the substation's incoming power feed(s), one break could disable the entire substation so the first question is "How high are the incoming wires?" I posted a while back that "self-guided farm equipment" (with the monitoring "driver" asleep or busy on his/her phone) had damaged a number of highline towers so that's certainly possible. This picture (you've probably seen it before): www.jecarter.us/files/grid-is-down.jpg tells you all you need to know about a highline being down and a possible guess at how long certain repairs might take. Between the legs of the tower, you can see where each phase is supported by its own pole so one pole down could shut down the substation. Could a large vehicle take out one of those poles? A large dump truck loaded with paving material is certainly heavy enough and if it's at a good speed (60MPH) it would be hard to stop. Substation size depends on residential/commercial density and how many houses/condos/apartments are "all electric" - and in this decade of the century, how many EV charging ports are in that area. Our substation feeds north, east and west with a total of just over 1800 total meters. Our leg on the substation is the biggest at currently just over 900 meters. The power co-op's outage map once had the size of all the substations available at a click but the last time I copied all that data was October of 2020. At that time, the largest substation meter count was 8258 and they served a total of 137,075 meters. Today's total meter count is 148,691 so they've grown some in almost 4 years. The then current list of meters served was: 1 . 496 . 674 . 885 . 979 . 995 . 1319 . 1551 . 1809 . 1923 . 2127 . 2292 . 2426 . 2914 . 3940 . 4018 . 4183 . 4284 . 4641 . 4856 . 5023 . 5237 . 5427 . 5629 . 5714 . 6195 . 6273 . 6286 . 6506 . 7011 . 7175 . 7846 . 8182 . 8258 Nice to have Excel sort those for me even if I do have to use a kludge such as " . " to provide useful space for reading when I post a list of numbers. Yes, that substation serving 1 meter is correct. I always thought I should go follow the lines out of that substation to see who or what that 1 meter was for. Effectively, our substation is small potatoes compared to some of the others so in a county-wide outage such as the 7" to 12" of snow in Dec 2017, we're not high on their restoral list (that forecast started as "1/2 to 1 inch of snow on grassy areas"). Thus I have multiple backup configurations: UPS units good for 30 - 60 minutes for internet, cable TV, landline cordless phone, 50" TV plus the solar charged backup system for fridge, freezer and central heat for 8+ hours plus an inverter generator for when there is no sun to charge that backup system plus lots of battery and rechargeable lights to have light wherever needed and for as long as needed.
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